Open Access
Table 1
Relative variations of Na vertical column density for each year compared to the global dataset mean (left values) and to their yearly mean (right values).
| Year | Max positive relative var. | Max negative relative var. | Yearly total var. |
|---|---|---|---|
| 2018 | 72%/52% | −27%/−35% | 99%/85% |
| 2019 | 31%/38% | −32%/−39% | 63%/77% |
| 2021 | 25%/45% | −36%/−25% | 61%/70% |
| 2022 | 56%/52% | −41%/−43% | 97%/94% |
| 2023 | 62%/63% | −46%/−46% | 108%/109% |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.